Slip-socket



C. P. WILLIAMS.

SLIP SOCKET.

APPLICATION F1150 APR. 21, I916.

Patented Aug. 15, 1916.

3 SHEETSSHEET I.

C. P. WILLIAMS.

S L|P SOCKET. APPLICATION FILED APR.2l, 1916.

1,194,910. Patented Aug. 15, 1916.

3 SHEETS-SHEET 2.

I I v flaw;

C. P. WILLIAMS.

SLIP SOCKET.

APPLICATKON FILED APn.2l. 1916.

1 1 94;, 9 1 O Patented Aug. 15, 1916.

3 SHEETS-SHEET 3.

UNITED STATES PATENT OFFICE.

CLARENCE P. WILLIAMS, OF SYRACUSE, OHIO.

SLIP-SOCKET.

To all whom it may concern Be it known that I, CLARENCE P. WIL- LIAMS, a citizen of the United States, residing at Syracuse, in the county of Meigs and State of Ohio, ha-ve invented certain new and useful Improvements in Slip-Sockets; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. i

This invention relates to new and useful improvements in slip sockets and is adapted for use in removing broken tools from oil Wells and the like.

The principal object of the invention is to provide a slip socket from which it is possible to readily remove the tool after having once been grasped by the slips. I

A further object of the invention is to provide a slip socket which is so constructed as to be readily operated to either grip or release the tool according to the desire of the user.

lVith these and other objects in view, the invention consists in the novel combination and arrangement of parts which will be fully set forth in the following specification and accompanying drawings, in which v Figure 1 is a side view in elevation of a slip socket constructed in accordance with this invention. Fig. 2 is a vertical sectional view through Fig. 1. Fig. 3 is a vertical sectional view taken at right angles to Fig. 2. Fig. 4 is a View similar to Fig. 3 showing the device in gripping position. Fig. 5 is a horizontal sectional view on line 55 of Fig. 3. Fig. 6 is a sectional view on line 66 of Fig. 3. Fig. 7 is an enlarged detail view showing the connection between the slips and reins, and Fig. 8 is an enlarged detail view of the lower end of the socket, said view being in section and illustrating the application of the liner for allowing the socket to be used on tools of varying size. Fig. 9 is a transverse sectional view taken on line 99 of Fig. 8. Fig. 10 is a fragmentary vertical sectional view through the casing, and Fig. 11 is a detail view of'one of the modified forms of slips and fillers.

Referring now to the drawings, the numeral 1 designates as an entirety the shell of the socket comprising a cylindrical body 2 having formed at its upper end a solid head 3. This head is provided with an extension l which is preferably cylindrical Specification of Letters Patent. Patented A g. 15 1916 Application filed-April 21, 1916.

Serial No. 92,681.

and is formed with flattened portions 5 to provide shoulders 6 the use of which will appear as the description proceeds. The upper end of the extension 4 is provided with the tapered threaded extension 7 for connection to suitable rods or other supports by which the device is lowered into the well casing. Formed in opposite sides of the shell 2 at diametrically opposite points are the longitudinal slots 8 which are arranged in alinement with the flattened portion 5 of the head 4, and these slots terminate at their upper ends at'the upper terminal of the shell 2 while their lower ends terminate at a point slightly above the lower terminal as clearly illustrated in Fig. 1. Slidably mounted in the slots are the slides 9 which are formed with the longitudinal grooves 10 in which the reins 11 are contained. The lower terminals of these reins are bifurcated as shown at'12 and are formed with suitable openings 13 in which studs 14 are mounted and on which the slips which will be more fully hereinafter described slide. The upper end of the reins 11 are formed with latch dogs 15 which are arranged to engage over the shoulder 6 to lock the reins in their raised position, as clearly illustrated in Fig. 3. Secured intermediate the ends of the reins and extending transversely therebetween is a head 16 and extending transversely of the device immediately be neath the head is a breakable pin 17 which is connected at diametrically opposite points to the casing 2.

The slips previously referred to are designated generally by the numeral 18 and each comprises a tapered body 19 having a plurality of teeth 20 formed on its inner face while a stem 21 extends upwardly from the face opposite the toothed face and is provided with a pair of longitudinal slots 22 through which the rivets 14: hereinbefore re- .ferred to extend. It willthus be seen that the slips may move upwardly a short distance without transmitting movement to the reins, thereby providing a latch, the operation of which will be more fullyhereinafter described. The lower terminal of the casing 2 is countersunk asat 23 and formed in the inner face of the lower terminaland immediately above the countersunk portions are the inclined rooves 24 which are adapted to slidably receive the slips when the device is assembled as shown in Fig. 1.

In order to prevent the slides 9 from being accidentally withdrawn a suitable bolt 27 is extended through the extension 4 and is arranged so that its ends will engage the upper terminals of the slides to prevent them from moving upwardly beyond a predetermined point.

It will be apparent from the foregoing that in use, the socket is slipped downwardly over the end of the broken or lodged tool and during the downward movement it will be seen. that the slips or jaws 18 will more upwardly withouttransmitting movementto the reins until the tool engages the stopper bolt designated by the numeral 17 then by pulling upwardly on the socket it will be seen that the jaws will move downwardly and grip the shank of the tool and when the socket is lifted the tool will be drawn out of the well hole. In order to release the tool from its position in the socket, the said socket is raised and then rapidly lowered and it will be seen that the lower end of the tool striking on the earth will cause the upper end to move upwardly breaking the bolt and driving the reins and slips upwardly so that the dogs 15 latch over the shoulders 6 and hold the reins in their inoperative or released position. lV hen in this position it will. be evident that the tool may be readily removed from the end of the socket and the necessity of break ing the socket or the tool is eliminated.

In the modified form of the invention illustrated in Figs. 8 to 11 inclusive the shell of the slip socket is designated generally by the numeral 29 and comprises a cylindrical body 30 carrying at its upper end the head 31 which is provided with the reduced extension 32 formed by the slot portions 33 which provides the shoulders 34. The upper end of the extension 32 is provided with the shaped threaded extension 35 while the lower end of the head is provided with internally threaded recess 36 for the reception of the mandrel 37 the use of which will appear as the description proceeds. Like the socket previously re ferred to the lower terminal of the cylindrical body 30 is thickened as at 38 and countersunk as at 39 while the thickened portion is provided with the diametrically opposed longitudinal grooves 40 in which the guide members on the liners are slidable. As

previously described the shell 29 is provided with the diametrically opposed longitudinal slots in which the slides are mount ed which form cover plates and are provided with the longitudinal grooves in which the reins designated by the numeral 41 are slidable. The upper ends of the reins like the reins 11 are provided with the latches 42 for engagement over the shoulders 34 so as to lock the device in its raised position. The lower ends of the reins are held in spaced parallel relation by a transand formed centrally of the outer wall I is a tapered extension 46 which conforms to the shape of the groove 40 so that upon downward movement of the liner 44 with relation to the shell the same will tend to move inwardly. A suitable guide slot 47 is formed centrally of the inner wall of the liner and is adapted to receive the guides 48 formed centrally of the rear wall of the independently movable slip 49 provided with the teeth 50 on its inner face. The liner is provided with an extension 51 which is adapted to fit in the bifurcated lower end of the reins and this extension is provided with a pair of longitudinal slots 52 for the reception of the bolt or rivet by means of which the same is attached to the reins. As shown at the lower end of Fig. 11 a suitable opening 53 is provided for the reception of the rivets 54- which holds the liners against movement until it is desired to have the hold broken.

From the previous description it will be apparent that in the operation of the modified form the liners 44 are first placed in proper position and the rivets 54 pass through their respective openings thereby holding the same firmly in place. The mandrel 37 is placed in position and it will be seen that the device may then be dropped into a well over the upper end of the fast or broken tool or rope socket and as the upper end of the tool slips into place it will be evident that the slip 49 will move upwardly and simultaneously out of gripping position due to the inclination of the wall 45 so that the tool engages the stopper bolt 43. Upon such engagement and the upward movement of the socket it will be evident that the slip will move downwardly so as to cause teeth 50 to bite the shank of the broken tool and upon further upward movement of the socket it will be apparent that the whole may be removed from the well casing. After the tool has been removed from the well casing and it is desired to break the hole in the socket thereon in order that it may be removed the socket is raised and rapidly lowered so that the end of the tool strikes upon the ground and the sudden shock will cause the rivets 54 which are formed of a material which may be easily broken to break.

and permit the liners, slips, reins and stop per bolts to move upwardly until the mandrel 37 is engaged at which time the slips will have moved simultaneously outwardly due to the inclination of the groove 40 and thus free the tool so that the same may be readily withdrawn from its position in the socket.

WVhile in the foregoing there has been shown and described the preferred embodiment of this invention, it is to be understood that such changes may be made in the combination and arrangement of parts as will fall within the spirit and scope of the appended claims.

\Vhat is claimed is 1. A slip socket comprising a hollow cylindrical shell, a head fixed in one end of said shell, said head being provided with shoulders on its upper end and having a pair of diametrically arranged grooves extending longitudinally therein, reins slidable in the grooves, a. cross head between the reins below the lower terminal of the head, the lower end of the shell being provided with a pair of diametrically arranged grooves, said grooves inclining outwardly toward their upper ends, slips slidably connected to the reins and slidably mounted in the grooves and a breakable stopper bolt secured transversely of the shell to limit the upward movement of a tool when the same is being gripped by the slip socket.

2. A slip socket comprising a hollow. cylindrical shell, a head secured in the upper end of the shell, said head being provided with diametrically arranged grooves, the shell being provided near its lower end with diametrically arranged grooves having their walls inclining outwardly toward their upper ends, reins slidable in the first men tioned grooves,. a mandrel within the head to limit the upward movement of the reins, latches at the upper ends of the reins for engagement over shoulderson the head, so as to lock said reins in a raised position, filler members removably secured in the lower end of the shell, breakable rivets for holding said filler members in place, cams on the filler members to slide within the inclined grooves, said filler members being connected to the reins and slips independently slidable in the tiller members and the reins so that upon their descent they will move toward each other in order to grip a tool.

In testimony whereof I .affix my signature in presence of two Witnesses.

CLARENCE P. WVILLIAMS. Witnesses:

D. H. PEOPLES,

, C. E. GILLILAN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. C.

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